Ryuichi Sakamoto
type: MusicGroup
description: was a Japanese musician, composer, keyboardist, record producer, singer and actor. He pursued a diverse range of styles as a solo artist and as a member of the synth-based band Yellow Magic Orchestra
popularity: 2
followers: 68
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc28df85253b77795c807c55c934a542be3abfa94cd211f21643e35a6a4cd3b0e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c2fc5d75-620f-48d3-ad66-9fa3b167ddb8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c2fc5d75-620f-48d3-ad66-9fa3b167ddb8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c2fc5d75-620f-48d3-ad66-9fa3b167ddb8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc28df85253b77795c807c55c934a542be3abfa94cd211f21643e35a6a4cd3b0e","name":"Ryuichi Sakamoto","registered_at":"2026-06-20T19:59:54Z","symbol":"NIM1699184","token_address":"0xa0fdbfc978bc19902c159f1d919e328bc89f6d41","type":"artist","uuid":"c2fc5d75-620f-48d3-ad66-9fa3b167ddb8"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28df85253b77795c807c55c934a542be3abfa94cd211f21643e35a6a4cd3b0e. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2fc5d75-620f-48d3-ad66-9fa3b167ddb8.json and https://artists.proofprofile.net/proofs/artist/c2fc5d75-620f-48d3-ad66-9fa3b167ddb8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0xc28df85253b77795c807c55c934a542be3abfa94cd211f21643e35a6a4cd3b0e","name":"Ryuichi Sakamoto","registered_at":"2026-06-20T19:59:54Z","symbol":"NIM1699184","token_address":"0xa0fdbfc978bc19902c159f1d919e328bc89f6d41","type":"artist","uuid":"c2fc5d75-620f-48d3-ad66-9fa3b167ddb8"}
album: Merry Christmas Mr. Lawrence
  type: MusicAlbum
  date published: 2024-11-21
album: Blu
  type: MusicAlbum
  date published: 2024-12-28